Vol. 26 No. 1 (2012) | Bulletin of the Chemical Society of Ethiopia

Published: 2012-01-10

Determination of lead at nanogram level in water samples by resonance light scattering technique using tetrabutyl ammonium bromide as a molecular probe

Fengling Cui, Yanru Yun, Guangquan Hui, Yi Wang

DOI:

10.4314/bcse.v26i1.1

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A novel separation/preconcentration technique based on ultrasonic dispersion liquid-liquid microextraction for determination of trace cobalt by flame atomic absorption spectrometry

Yukun Wang, Xiaojing Ke, Jingwen Zhang, Xin Du, Jingjun Ma, Jingci Li

DOI:

10.4314/bcse.v26i1.2

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Solid phase extraction of trace amounts of palladium ions using multiwalled carbon nanotube modified by N,N’-bis(2-hydroxy-benzylidene)-2,2’(aminophenylthio) ethane prior to determination by flame atomic absorption spectrometry

T. Shamspur

DOI:

10.4314/bcse.v26i1.3

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Concentration levels of major and trace metals in onion (Allium cepa L.) and irrigation water around Meki Town and Lake Ziway, Ethiopia

Reta Birhanu Kitata, Bhagwan Singh Chandravanshi

DOI:

10.4314/bcse.v26i1.4

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Composition, mineral safety index, calcium, zinc and phytate interrelationships in four fast-foods consumed in Nigeria

E.I. Adeyeye, O.T. Orisakeye, M.A. Oyarekua

DOI:

10.4314/bcse.v26i1.5

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Characteristics of oils and nutrient contents of Nigella sativa Linn. and Trigonella foenum-graecum seeds

M. Abbas Ali, M. Abu Sayeed, M. Shahinur Alam, Mst. Sarmina Yeasmin, Astaq Mohal Khan, Ida I. Muhamad

DOI:

10.4314/bcse.v26i1.6

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PVC-membrane potentiometric sensors based on a recently synthesized Schiff base for Fe(III) ion

Iran Sheikhshoaie, Tayebeh Shamspur, Ali Mostafavi, S. Yousef Ebrahimipur

DOI:

10.4314/bcse.v26i1.7

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Differential pulse voltammetric determination of theophylline at poly(4-amino-3-hydroxyl naphthalene sulfonic acid) modified glassy carbon electrode

Meareg Amare, Shimelis Admassie

DOI:

10.4314/bcse.v26i1.8

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Synthesis, characterization and thermodynamic studies of complexes of dimethyl, diethyl, and diphenyltin(IV) dichlorides with (2H)-1,4-benzothiazine-2,3-(4H)-dione dioxime

Abedien Zabardasti, Ali Kakanejadifard, Leyla Shabani

DOI:

10.4314/bcse.v26i1.9

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Synthesis, magnetic and spectroscopic studies of Ni(II), Cu(II), Zn(II) and Cd(II) complexes of a newly Schiff base derived from 5-bromo-2-hydroxybezylidene)-3,4,5-trihydroxybenzohydrazide)

Abeer A. Alhadi, Shayma A. Shaker, Wagee A. Yehye, Hapipah Mohd Ali, Mahmood A. Abdullah

DOI:

10.4314/bcse.v26i1.10

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Synthesis of 8-methylnonane-1,6,7-trien-4-one and related allenes as potentially useful synthetic precursors

S.J.M. Mdachi

DOI:

10.4314/bcse.v26i1.11

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Efficient synthesis of novel azo compounds based on pyrimido[4,5-e][1,3,4]thiadiazine

Mohsen Nikpour, Soroush Zarinabadi, Sattar Saberi

DOI:

10.4314/bcse.v26i1.12

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One-pot three-component synthesis of 4-aryl-3,4-dihydro-pyrimidin-2(1H)-thiones catalyzed by Ni loaded SiO₂

Suresh Maddila, Sreekanth B. Jonnalagadda

DOI:

10.4314/bcse.v26i1.13

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Physicochemical analysis of Tigray honey: An attempt to determine major quality markers of honey

Kebede Nigussie, P.A. Subramanian, Gebrekidan Mebrahtu

DOI:

10.4314/bcse.v26i1.14

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Synthesis and crystal structure of trans-[Ni(pyzdcH)M₂(H₂O) ₂] based on pyrazine-2,3-dicarboxylic acid

Mohsen Nikpour, Hossein Eshtiagh-Hosseini, Masoud Mirzaei, Marek Necas, Nafiseh Alfi

DOI:

10.4314/bcse.v26i1.15

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Microwave assisted oxidative coupling of thiols to symmetrical disulfides with tripropylammonium fluorochromate(VI) (TPAFC)

Mohammad Kazem Mohammadi, Shahriare Ghammamy

DOI:

10.4314/bcse.v26i1.16

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Heteropolyacids as an efficient and reusable catalytic system for the regiospecific nitration of phenols with metal nitrates

Bita Baghernejad, Majid M. Heravi, Hossein A.Oskooie, Fatemeh F. Bamoharram

DOI:

10.4314/bcse.v26i1.17

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Synthesis of stabilized phosphorus ylides from electron-poor alcohols and their applications in the preparation of 2,5-dihydrofuran derivatives

Sadegh Salmanpour, Ali Ramazani, Yavar Ahmadi

DOI:

10.4314/bcse.v26i1.18

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Bulletin of the Chemical Society of Ethiopia
Journal / Bulletin of the Chemical Society of Ethiopia / Vol. 26 No. 1 (2012) / Articles

Articles

Determination of lead at nanogram level in water samples by resonance light scattering technique using tetrabutyl ammonium bromide as a molecular probe

DOI:

A novel separation/preconcentration technique based on ultrasonic dispersion liquid-liquid microextraction for determination of trace cobalt by flame atomic absorption spectrometry

DOI:

Solid phase extraction of trace amounts of palladium ions using multiwalled carbon nanotube modified by N,N’-bis(2-hydroxy-benzylidene)-2,2’(aminophenylthio) ethane prior to determination by flame atomic absorption spectrometry

DOI:

Concentration levels of major and trace metals in onion (Allium cepa L.) and irrigation water around Meki Town and Lake Ziway, Ethiopia

DOI:

Composition, mineral safety index, calcium, zinc and phytate interrelationships in four fast-foods consumed in Nigeria

DOI:

Characteristics of oils and nutrient contents of Nigella sativa Linn. and Trigonella foenum-graecum seeds

DOI:

PVC-membrane potentiometric sensors based on a recently synthesized Schiff base for Fe(III) ion

DOI:

Differential pulse voltammetric determination of theophylline at poly(4-amino-3-hydroxyl naphthalene sulfonic acid) modified glassy carbon electrode

DOI:

Synthesis, characterization and thermodynamic studies of complexes of dimethyl, diethyl, and diphenyltin(IV) dichlorides with (2H)-1,4-benzothiazine-2,3-(4H)-dione dioxime

DOI:

Synthesis, magnetic and spectroscopic studies of Ni(II), Cu(II), Zn(II) and Cd(II) complexes of a newly Schiff base derived from 5-bromo-2-hydroxybezylidene)-3,4,5-trihydroxybenzohydrazide)

DOI:

Synthesis of 8-methylnonane-1,6,7-trien-4-one and related allenes as potentially useful synthetic precursors

DOI:

Efficient synthesis of novel azo compounds based on pyrimido[4,5-e][1,3,4]thiadiazine

DOI:

One-pot three-component synthesis of 4-aryl-3,4-dihydro-pyrimidin-2(1H)-thiones catalyzed by Ni loaded SiO₂

DOI:

Physicochemical analysis of Tigray honey: An attempt to determine major quality markers of honey

DOI:

Synthesis and crystal structure of trans-[Ni(pyzdcH)M₂(H₂O) ₂] based on pyrazine-2,3-dicarboxylic acid

DOI:

Microwave assisted oxidative coupling of thiols to symmetrical disulfides with tripropylammonium fluorochromate(VI) (TPAFC)

DOI:

Heteropolyacids as an efficient and reusable catalytic system for the regiospecific nitration of phenols with metal nitrates

DOI:

Synthesis of stabilized phosphorus ylides from electron-poor alcohols and their applications in the preparation of 2,5-dihydrofuran derivatives

DOI:

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